如何获取一周的第一天和最后一天的日期

Question

I have this query who gives me the week number.

select to_char(sysdate, 'iw') week from dual

I would like to retrieve the first and last date, like this: 2019-11-11 to 2019-11-17.

Thank you.

Answer 1

I think the easiest way is to use trunc() :

select trunc(sysdate, 'iw') as week_start,
       trunc(sysdate, 'iw') + interval '6' day as week_end       
from dual